Crossrail London dig unearths ancient burial ground - video

Some 4,000 bodies dating from between 1569 and the early 18th Century are being unearthed as rail workers undergo a huge construction project at Liverpool Street station. Skeletons belonging to plague sufferers, war victims and asylum inmates are being carefully unearthed and examined by a team of experts. Video narrated by Jay Carver, lead archaeologist at Crossrail